Cellular steel structure.



.PATENTED APR. 9,.1907.

J. M. RUDE. CELLULAR STEEL STRUCTURE. APPKLIOATIOR nLEnAPB-M. 1

2 sums-3112M 1.

PATENTED APR. 9, 1907.

J. M. RUDE. CELLULAR STEEL STRUCTURE.

APPLICATION FILED APR. 21. 1906.

2 SHEETS-SHEET 2.

cells lying between the walls.

UNITED STATES PATENT OFFICE.

JAMES M. RUDE, OF COVINGTON, KENTUCKY, ASSIGNOR TO NATIONAL CELLULAR STEEL COMPANY, OF NE'W'YORK, N. Y., A CORPORA- TION.

CELLULAR STEEL STRUCTURE.

Specification of Letters Patent.

Application filed April 21,1996. Serial No. 313,019.

Patented April 9, 1907.

tures, of which the followingis a specification.

My invention relates to 'an improved cellular structurefor forming walls, partitions,

ceilings, &c., of fireproof buildings.

The invention is specifically an improvement on the structure shown in the atent to E. F. Baude, No. 596,010, patente December'21, 1897. 4

The features of the invention are more fully. set forth in the description of the accompanying drawings, forming a part of this specification, in which Figure 1 represents an end view of the structure. Fig. 2 is a plan viewof the blank. Fig. 3 is a top plan View of the completed structure. Fig. 4 is an end view of a modification. Fig. 5 is a section on line a; as, Fig. 4. Fig. 6 is a plan view of the blank used in forming the modification.

1 represents a continuous sheet of metal, having the plain sections 2 and the corrugated sections 3 alternately intermediating. This blank is bent up so that it forms a series of cells substantially equilateral triangular shaped in crosssection. The bending is such that the plain sections alternately fall on opposite sides, thereby forming two parallel p ain-faced walls practifiolly continuous, the space between which is divided by the corru gated sections into individual cells su bstantially equilateral triangular-shaped inrrosssection. It will be seen that the plain) sections form the bases of the triangles and the outside walls, while the corrugated sections form the equilateral sides ofv the triangular I have found that by thus corrugating these partitionwalls between the plain walls that I can use much lighter gaged metal. than with the structure shown in the said prior patent. I

' have a so found that the corrugated intermediate walls of the cells form superior retaining-surfaces for any filler which may be employed, such as mortar. It is obvious that plain or formed metal may be employed from-which to make this structure.

The foregoing description refers to Figs. 1, 2, and 3, in which the corrugations extend in the direction of the length of the cells. Such structure is used for walls and partitions, and the corrugations extend in the vertical planes corresponding with the direction of strains.

In Figs. 4, 5,- and 6 the structure 'is used for floors and ceilings. In this modification the, corrugations 4' extend transversely to the cells or in the direction of the width of the equilateral walls 5 of the cells. Thus the corrugations are caused to extend substantially parallel with the direction of strains.

Having described my invention, I clai1n- 1. A cellular building structure formed of a continuous sheet of metal bent to form two parallel walls with plain surfaces, the space between which is divided by corrugated sections into individual cells substantially equilateral triangularshaped in cross section, substantially as described.

2. A cellular building structure formed f a continuous sheet of metal bent to form two parallel walls with plain surfaces, the space between them being divided by corrugated sections of the sheet to form ind vidual cells, the corrugations extending lengthwise of the cells. substantially as des :ribed.

3. A fireproof structure formed of cells equilateral triangular-shaped in cross-section, the bases of said triangles being plain surfaces, the bases of the first, third and fifth cells abutting on one side, the bases of the second, fourth and sixth cells abutting on the other side, the equilateral sides of the triangles being corrugated and extending be tween the walls formed by the bases, substantially as described.

1.. testimony whereof I have hereunto set Iny hand. v JAMES M. RUDE. Witnesses:

OLIVER B. KAISER, LUrsn BEoK. 

